H05B 41/32
For single flash operation
Official title: for single flash operation
H05B41/32 (For single flash operation) appears on 414 US grants and 117 published applications in this corpus.
Search patents in H05B- Granted patents
- 414
- Published applications
- 117
- Assignees
- 119
- Inventors
- 472
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 17 | 0 |
| 1978 | 22 | 0 |
| 1979 | 15 | 0 |
| 1980 | 16 | 0 |
| 1981 | 22 | 0 |
| 1982 | 14 | 0 |
| 1983 | 16 | 0 |
| 1984 | 14 | 0 |
| 1985 | 5 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 13 | 0 |
| 1991 | 14 | 0 |
| 1992 | 15 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 14 | 0 |
| 1999 | 17 | 0 |
| 2000 | 12 | 0 |
| 2001 | 2 | 3 |
| 2002 | 8 | 14 |
| 2003 | 13 | 5 |
| 2004 | 14 | 7 |
| 2005 | 4 | 12 |
| 2006 | 6 | 3 |
| 2007 | 2 | 8 |
| 2008 | 5 | 7 |
| 2009 | 5 | 7 |
| 2010 | 10 | 7 |
| 2011 | 3 | 4 |
| 2012 | 5 | 4 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 1 | 5 |
| 2016 | 8 | 2 |
| 2017 | 2 | 3 |
| 2018 | 3 | 5 |
| 2019 | 3 | 6 |
| 2020 | 6 | 2 |
| 2021 | 2 | 4 |
| 2022 | 3 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Voltage doubling circuit for powering a load19 May 2026US 12,635,044 B2Tomar Electronics, Inc.
- Voltage doubling circuit for powering a load12 Nov 2024US 12,144,073 B1Tomar Electronics, Inc.
- Systems and methods for operating a light system15 Nov 2022US 11,503,680 B2The Boeing Company
- Method and apparatus for the thermal treatment of a substrate1 Nov 2022US 11,490,473 B2
- Image pickup apparatus that controls flash emission amount at photographing and control method therefor15 Mar 2022US 11,275,289 B2Canon Kabushiki Kaisha
- Light-emitting device, flash device, imaging system, and imaging method13 Aug 2026US 2026/0235932 A1Canon Kabushiki Kaisha
- Flash irradiation apparatus30 Apr 2026US 2026/0122738 A1Ushio Denki Kabushiki Kaisha
- Voltage doubling circuit for powering a load3 Apr 2025US 2025/0113416 A1Tomar Electronics, Inc.
- Illuminator control method, illuminator fitting, and electronic device19 May 2022US 2022/0155656 A1Huawei Technologies Co., Ltd.
- Lighting system and control thereof28 Oct 2021US 2021/0333691 A1Rotolight Limited
Most cited
By later US patents
- Constant light intensity electronic flash device75US 4,275,335 AMinolta Camera Kabushiki Kaisha · 1981
- Electronic flash and a camera provided with the same49US 5,895,128 AMinolta Co., Ltd. · 1999
- Electronic pulse width controller for flashlamp pumped lasers44US 5,255,277 AWhittaker Ordnance, Inc. · 1993
- Electronic flash43US 4,677,347 AOlympus Optical Co., Ltd. · 1987
- Information transmitting apparatus using flash light emission40US 6,167,199 ACanon Kabushiki Kaisha · 2000